I don't know how to bring my model back after clicking a mesh data link on the object data tab
As mentioned in the comments the OBJ mesh I imported had several "parts". What I did was when I went into object data I was viewing the old parts from the original mesh I imported. So I deleted the original mesh with so many "parts". Afterwards the only things I seen in mesh data were my object, and my floor plane. I selected my object, and it reappeared.